[INFO] fetching crate tai 0.0.8...
[INFO] checking tai-0.0.8 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate tai 0.0.8 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate tai 0.0.8 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tai 0.0.8
[INFO] finished tweaking crates.io crate tai 0.0.8
[INFO] tweaked toml for crates.io crate tai 0.0.8 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate tai 0.0.8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gif v0.11.2
[INFO] [stderr]   Downloaded libc v0.2.100
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a78eeca0d1e1218ca487373dbffad4be75f693121e900a292cf7c1f3ceefc67f
[INFO] running `Command { std: "docker" "start" "-a" "a78eeca0d1e1218ca487373dbffad4be75f693121e900a292cf7c1f3ceefc67f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a78eeca0d1e1218ca487373dbffad4be75f693121e900a292cf7c1f3ceefc67f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a78eeca0d1e1218ca487373dbffad4be75f693121e900a292cf7c1f3ceefc67f", kill_on_drop: false }`
[INFO] [stdout] a78eeca0d1e1218ca487373dbffad4be75f693121e900a292cf7c1f3ceefc67f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75d68dd2b06f20f4bfc529fe79c252c9cbdf7d84bb42a5c76423d0fa4ad9be31
[INFO] running `Command { std: "docker" "start" "-a" "75d68dd2b06f20f4bfc529fe79c252c9cbdf7d84bb42a5c76423d0fa4ad9be31", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking weezl v0.1.5
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking bytemuck v1.7.2
[INFO] [stderr]     Checking gif v0.11.2
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking tai v0.0.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.84s
[INFO] running `Command { std: "docker" "inspect" "75d68dd2b06f20f4bfc529fe79c252c9cbdf7d84bb42a5c76423d0fa4ad9be31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75d68dd2b06f20f4bfc529fe79c252c9cbdf7d84bb42a5c76423d0fa4ad9be31", kill_on_drop: false }`
[INFO] [stdout] 75d68dd2b06f20f4bfc529fe79c252c9cbdf7d84bb42a5c76423d0fa4ad9be31
[INFO] checking tai-0.0.8 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate tai 0.0.8 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate tai 0.0.8 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tai 0.0.8
[INFO] finished tweaking crates.io crate tai 0.0.8
[INFO] tweaked toml for crates.io crate tai 0.0.8 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate tai 0.0.8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e51d0e1e1db5babbf7f8ac0b0a1489a4d0f23fa68f0857b1497a8f34a67d19a6
[INFO] running `Command { std: "docker" "start" "-a" "e51d0e1e1db5babbf7f8ac0b0a1489a4d0f23fa68f0857b1497a8f34a67d19a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e51d0e1e1db5babbf7f8ac0b0a1489a4d0f23fa68f0857b1497a8f34a67d19a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e51d0e1e1db5babbf7f8ac0b0a1489a4d0f23fa68f0857b1497a8f34a67d19a6", kill_on_drop: false }`
[INFO] [stdout] e51d0e1e1db5babbf7f8ac0b0a1489a4d0f23fa68f0857b1497a8f34a67d19a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 871e5cef12efc28819b1c1f18330b7c9bc02ea77a85754eaf1933371c047ae2e
[INFO] running `Command { std: "docker" "start" "-a" "871e5cef12efc28819b1c1f18330b7c9bc02ea77a85754eaf1933371c047ae2e", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking weezl v0.1.5
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking bytemuck v1.7.2
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking gif v0.11.2
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking tai v0.0.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.34s
[INFO] running `Command { std: "docker" "inspect" "871e5cef12efc28819b1c1f18330b7c9bc02ea77a85754eaf1933371c047ae2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "871e5cef12efc28819b1c1f18330b7c9bc02ea77a85754eaf1933371c047ae2e", kill_on_drop: false }`
[INFO] [stdout] 871e5cef12efc28819b1c1f18330b7c9bc02ea77a85754eaf1933371c047ae2e